Apologies to those who have read my post before. For some reason my post got stuck underneath someone else's post. I probably clicked a wrong button. So, I am posting again, hoping to get some help from you guys.

I have a simple vop for loop question. I am trying to use vop for loop to smooth a mesh multiple times by embedding for loop inside of another for loop, but it seems like final global point position value doesn't update. Can someone take a look at my file and tell me what I am missing? Thanks so much!

The VOP SOP architecture does not work like you think. You're just reading the same neighbor positions in each for loop. The actual positions are updated only when the VOP exits. Your outer loop is still “too deep inside”.

The easiest solution would be to put either your VOP SOP (without the outer loop) or a Smooth SOP inside a ForEach SOP and run it multiple times there.